JPH0423725A - Carrying device - Google Patents

Abstract

PURPOSE:To improve responsiveness to small lot multiple production in a directing and carrying device of sewing work by reading the number of the material to be carried at each work station, and commanding next station as a destination in order corresponding to the carrying order per a number which is stored previously. CONSTITUTION:The number of the material to be carried, which is carried to each work station, is read by a number reading means M3 provided so as to correspond to each work station, and is input to a destination command means M5. The destination command means M5 takes out the carrying order corresponding to the number from a storage means M4, and commands next station as a destination of the material to be carried to a carrying control means M2. The carrying control means M2 controls a carrying mechanism 1 with this command.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a conveyance device that conveys a conveyance body holding an article such as a work cloth along a conveyance rail.

[Prior Art] Various conveyance devices have been proposed in the past for sewing factories and the like to automatically convey conveyance bodies holding articles such as sewn products to work stations arranged along conveyance rails. There is. For example, as disclosed in Japanese Unexamined Patent Publication No. 62-249687, the order of the work stations to be transported is stored in accordance with the work steps performed on the work cloth held on the transport body, in correspondence with the order of the work steps. ing. A method has been proposed in which each carrier is sequentially transported to each work station according to the stored order.

[Problems to be Solved by the Invention] However, with these conventional methods, (although the conveyance bodies are not conveyed to the wrong work station, all the conveyance bodies are not conveyed to the wrong work station, transported to the work station.

Therefore, even if you try to mix different conveyance bodies that differ from the pre-stored work process order, the conveyance bodies will also be conveyed to each work station in the pre-stored work process order.
It was not possible to mix different conveyors with different work processes.Example 8 (Even if you try to cope with high-mix, low-volume production, all conveyors with the same work process order memorized in advance) The work must be finished once.

Next, the new work process order must be memorized before a new conveyor is introduced, and the work process must be changed only after all the work on the conveyor in the previous work process has been completed. There was a problem in that it was not possible to do so, and it had to be replaced each time the work process changed, which meant that it could not be able to adequately respond to high-mix, low-volume production.

Therefore, the present invention aims to solve the above problems,
The purpose of the present invention is to provide a conveying device that can handle high-mix, low-volume production.

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configuration as a means for solving the problems, namely, as shown in FIG. a plurality of work stations are provided along the rail, and a transport mechanism M1 capable of transporting the transport body to each of the work stations according to the transport order in which the work is to be carried out; In the conveyance apparatus, the conveyance control means M2 is configured to convey the knee conveyance body from the work station where the process has been completed to the next work station 1'. a number reading means M3 for reading the number of the transport body, and a storage means M for storing the transport order for each number of each transport body.
4, based on the number read corresponding to the work station, select the next work station after the work station from the transport order corresponding to the number stored in the storage means M4; This is a configuration of a transport device characterized by comprising: destination instructing means M5 for instructing the transport control means M2 as the destination of the body.

[Operation] The conveying device having the above structure (the food number reading means M3 reads the unique number attached to the conveying body being conveyed for each work station. The transport order is stored for each number, and the destination indicating means M
5, based on the number read corresponding to the work station, selects the work station next to the work station of the transport body with the number from the transport order corresponding to the number stored in the storage means M4. It instructs the transport control means M2 as the destination. The transport control means M2 controls the transport mechanism M to transport the transport body from the work station where the work has been completed to the next work station.

[Example] Embodiments of the present invention will be described in detail below based on the drawings.

As shown in Figures 2 to 4, the mechanisms 1 are installed at intervals in a sewing factory, etc., and each mechanism 1 is
A support column 3 is provided to stand on the floor surface 2. A support shaft 4 is erected at the upper end of the support column 3 via a mounting base 5. A support plate 6 is fixed to the upper end of the support shaft 4. On the upper surface of the support plate 6, a station rail support frame 7a in the form of a rectangular frame is supported and fixed at its intermediate portion. In addition, a pair of parallel bridge rail support frames 7b are supported and fixed to the adjacent distribution portions, spanning between the support plates 6 of the mechanism 1 and the like.

On the other hand, there are work stations S around the
T is placed towards this work station 8,
From the bridge rail support frame 7b to the stationary support frame 7a
has been extended. In this embodiment, a part of the work station ST is arranged as a completion station STa for removing a work cloth etc. from a conveyor 61, which will be described later, and a loading station STb for attaching a new cut cloth etc. to the conveyor 61. The distribution on the right end of FIG. 2 is provided around mechanism 1. Other work stations ST
is formed by a sewing device such as a sewing machine placed below the station toll 11.

A pair of parallel bridge rails 10 are suspended and supported by a plurality of hanging fittings 9 on the support frames 7a and 7b, and are provided between the mechanisms 1. Also,
Work stations S arranged around the mechanism]
A plurality of horseshoe-shaped station rails for T are provided, and a transport rail 8 is constituted by the bridge rail and the station rail. Carrying-in rail part] ○a, llb and carrying-out rail part] Ob, l
lb is bridge rail 10 and station rail 11
Both ends of (two respectively formed tags) these rail parts 10
a, 10b, 11a, and 1 lb are arranged around the mechanism 1 at the same height at predetermined angle intervals (45 degrees in the embodiment).

As shown in FIG. 5 and FIG.
A drive sprocket 14 is fixed to the lower end of the support tag rotatably penetrating through the bracket fixed to the bracket] 3. The driven sprocket 15 is rotatably and positionally adjustable via a movable bracket 6 on the lower surface of the other side of the support plate 6 so as to be located on the opposite side of the drive sprocket 14 via the support shaft 4. . A pair of interlocking shafts] 7 are supported rotatably and positionally adjustable through a movable bracket 8 on the support plate 6 between the two sprockets 14 and 15. At their lower ends are interlocking sprockets. ]9 is fixed.

The endless first chain 20 is hung across the driving sprocket 4 and the driven sprocket 5 of the adjacent mechanism. And a plurality of chain guides 22 provided on each hanging metal fitting 9
It is stretched along the An endless second chain 23 is attached to each interlocking sprocket 19, a plurality of guide sprockets 24 provided on the lower surface of the tag support plate 6, and a plurality of chain guides (not shown) provided on each hanging metal fitting 9. ) is stretched along the station rail].

A chain drive motor 26 is mounted on the support plate 6 via support legs 27, and a drive pulley 28 is fixed to the motor shaft 26a.

A driven pulley 29 is fixed to the upper end of the rotating shaft 12, and a timing belt 30 is hung between the driven pulley 29 and the driving pulley 28. The three interlocking pulleys 31 are fixed to the middle part of the rotating shaft [2] and the upper end of the interlocking shaft]7, respectively, and the timing belt 3 is attached to these interlocking pulleys 31.
2 is attached. A pair of tension pulleys 33 on the support plate 6 apply tension to the timing belt 32.

As the motor 26 rotates, the rotating shaft 12 is rotated counterclockwise in FIG. It is moved around in the direction. Further, as the rotating shaft [2] rotates, the interlocking pulley 31
Both the speed-moving shafts] 7 are rotated counterclockwise via the timing belt 32, and the two-cylinder chains 23 are rotated in the same direction via the interlocking sprocket 9. Therefore, as shown by the arrows in FIG. 3, the conveyance direction of the pair of bridge rails 10 between the mechanisms 1 is counterclockwise in the plane, and the conveyance direction of each station rail 1 is also counterclockwise in the plane. become.

As shown in FIG. 7, a number of rollers 20a and 23a are provided at the lower portions of the first chain 20 and the second chain 23, respectively, at a predetermined pitch in the longitudinal direction.

As shown in FIGS. 4 to 6, a rotating body 41 is rotatably supported via a radial bearing 42 on the support shaft 4 of the distribution mechanism. A thrust bearing 43 is interposed between the two. A plurality of (eight in the embodiment) radial swings are provided by arms 44.
are the loading rail portions 10a and 11b of the bridge rail 10 and the station rail 11, or the loading rail portion 10b of the station rail 11.
, 1]b, protruding radially from the outer circumferential edge of the rotary body 4 at a predetermined angle (45 degrees in the embodiment) and corresponding to the movement range of the first chain 20 or the second chain 23. It extends to the position where

As shown in FIGS. 4 and 6, a rotating rail 45 is rotatably attached to the tip of the arm 44 at the tip of the arm 44. An engaging protrusion 45a is provided at the inner end of the rotating rail 45. It is formed. As shown on the left side of FIG. 6, this rotating rail 45 is always held in a downwardly inclined state due to its own weight. Further, for each swing, a plurality of push-up cylinders 5] are connected to a mounting base 5 by a support plate 52 below the arm 44.
At the upper end of the piston rod 51a, there is provided a push-up body 53 which can be engaged with the rotating arm 45 on the arm 44 during swing. This push-up cylinder 51 (the piston rod 51a is always moved to the retracted state, and when the piston rod 5]a is moved to protrude 1:
, As shown on the right side of FIG. 6, 1: The push-up body 53 is raised,
The rotating arm 45 is rotated from a downwardly inclined state to a horizontal state.

Further, as shown in FIGS. 4 to 6, a servo motor 54 for arm rotation, which can rotate in forward and reverse directions, is mounted on the support plate 6, and a drive pulley 55 is fixed to the motor shaft 54a. ing. The driven pulley 56 is fitted onto the support shaft 4 and fixed to the upper surface of the rotating body 4. A timing belt 57 is hung between the driven pulley 56 and the drive pulley 55.

As shown in FIG. 6, an encoder 58 is attached to the servo motor 54 so that the amount of rotation of the servo motor 54, that is, the rotation angle of the arm 44 can be detected.

In addition, detection objects 59 are attached to positions corresponding to the arms 44 on the lower surface of the rotating body 4.

The detector 60 is mounted on the support plate 52 in correspondence with the detected object 59, and when the detector 60 detects the end of the detected object 59, the plurality of distributions can be detected by rotation while supporting the arm 44. body 4] can be detected.

Rotate this servo motor 54 in the forward or reverse direction,
Driven by the servo motor 54, the rotating body 41 is rotated by a predetermined angle of 45 degrees or an integral multiple thereof in the forward or reverse direction via the drive pulley 55, timing belt 57, and driven pulley 56. A loading rail portion 10a of a predetermined bridge rail]0 or station rail]1.

11a and the carrying-out rail portions 10b and llb.

On the other hand, as shown in FIGS. 7 and 8, a conveyor 61 for suspending articles such as sewn products is movably supported on the bridge rail 0 and station rail 1. There is. This conveyor 6] (Table 1) includes a main body 61a supported across the rails 10.11, and a hanging rod 61b extending downward from the lower surface of the main body 61a through between the rails 10.11. Transfer rollers 62 are rotatably supported on both sides of the main body portion 61a and contact the upper surfaces of the respective rails 10.11.

A pair of front and rear first auxiliary rollers 63 are rotatably supported by stepped screws 64 on the protrusions at both front and rear ends of the main body portion 61a. By engaging, the carrier 6
] is restricted from tilting in the moving direction, and the postures are maintained in the same direction, and the conveying bodies 36 are kept at an appropriate distance without coming into close contact with each other. Transport body 6]
A pair of front and rear second auxiliary rollers 65 are rotatably supported by stepped screws 66 at the lower end of the main body 61a. , the tilting movement in a direction perpendicular to the direction of movement of the transport body 61 is restricted, and the posture is maintained in the same direction.

Furthermore, a pair of sprocket-shaped drive transmission bodies 67 are fitted on both outer sides of both transfer rollers 62 to both ends of a support shaft 68 whose rotation is limited to a predetermined degree by friction means (not shown) in the main body 61a. has been done. Both rollers 20a of the first chain 20 and the second chain 23 are provided on the outer periphery thereof.

A plurality of retaining protrusions 67a that engage with the roller 2
They are provided at the same pitch as 0a and 23a. Further 1:,
A pair of disk-shaped objects to be detected 69 are fixed to both ends of the support shaft 68 with screws 71 via collars 70 . A plurality of first small holes 72 are formed on the detected object 69 at equal pitches on the same circumference, and a second small hole having a non-perforated portion 73a for detecting the origin position is provided outside the first small holes 72. 73 is formed to close one of the first small holes 72, and a unique number is assigned to each carrier 61 correspondingly.

A rotary shaft 75 is rotatably supported by a predetermined hanging fitting 9 at a position to be described later on the conveyance path of the conveyance body 6. A pair of stop levers 76 are fixed to both ends of the rotating shaft 75.
can be engaged with. An air cylinder 77 is rotatably attached to the outer surface of the hanging fitting 9 at its base end via a mounting plate 78 with a pin 79. When the piston rod 77a of the air cylinder 77 is moved to protrude,
The rotation shaft 75 rotates counterclockwise in FIG. 7 via the connecting fitting 80 and the rotation link 81, and the bill stop lever 76 moves from the non-engaged position shown by the solid line to the engagement shown by the two-dot chain line in the same figure. It is configured to be rotatably arranged in position. Then, when the conveying body 61 is moved along the rails 10, 11 by the chains 20, 23 in this rotationally arranged state of the stop lever 76, the collar 70 engages with the stop lever 76 and the conveying body 61 is moved by the chains 20, 23. movement is prevented.

At this time, the drive transmission body 67 and the detected object 69 are rotated by the chains 20 and 23 against the frictional force of the friction means, and the movement of the conveying body 6 is prevented. ing.

The aforementioned rotating shaft 75, stop bar 76, and air cylinder 7
7, connecting fitting 80, rotation link 8], the stopping mechanism 82
It consists of This stopping mechanism 82 is provided at a predetermined position, and in this embodiment, the stop mechanism 82 is provided at each of the carrying rail portions 10a and lla of the bridge rail O and the station rail 11. In FIG. 2, the position where the stop mechanism 82 is provided is shaded.

In addition, non-contact type first and second inspection objects 83 and 84 are attached to the outside surface of the hanging bracket 9 provided with the stop mechanism 82 (in the vicinity of the stop lever 76) by the mounting plate 85. Through-holes 85a are formed in the side plates of the suspension fittings 9 in correspondence with the tips of the suspension fittings 9.Then, the conveyance body 6 is stopped on the rails 10.11 by the stop lever 76, and the detection object 69 is stopped on the rails 10.11. When the transport body 61 is rotated, the first small hole 72 and the second small hole 73 are optically read by the first detecting body 83 and the second detecting body 84, and the unique number of the conveying body 61 can be identified. 1. Second detection body 83, 84
, the detected object 69, etc. constitute a number reading mechanism 85.

Next, the electrical system of this embodiment will be explained with reference to the block diagram shown in FIG. Each of the mechanisms described above is driven and controlled by the electronic control circuit 100 to transport the transport body 6]. This electronic control circuit] 00 is a well-known CPU 101, ROM 10
2. The RAM 103 is configured as the center of the logic operation circuit. The input/output circuit 104 and the like that perform input/output with external devices are connected to each other via a common bus 105.

In this embodiment, the electronic control circuit 10011 is provided for each mechanism, and the plurality of electronic control circuits 10011 and 00 are connected to the host computer so that signals can be exchanged via the input/output circuit 104. ]06.

Further, each work station ST is installed with a work information transmission device WST, and this work information transmission device WST includes a liquid crystal display 107 for displaying work instructions at each work station ST, and a liquid crystal display 107 for displaying work instructions at each work station ST. A plurality of key switch groups 109 including a closing switch 108 which is operated at a time to generate a closing signal are provided, so that work information can be transmitted between the worker at the work station ST and the host computer 106. has been done.

At input station STb, [1 work information transmission device WST
is operated, and the route table shown in FIG. 12 is created and stored in advance. At each work station ST, various operations are performed on the work cloth held on the conveyor 61.
In this route table, the numbers of the work stations ST to which the conveyor 61 is conveyed are entered and written in order (according to the order of a series of sewing work steps to be performed on the finished cloth).

Also, due to differences in the color and design of the processed cloth, the conveyor 6]
(Since the work steps of the held work cloths are different, different route numbers are assigned, and the number of the work station ST is input in the order of the work steps, and a plurality of work step orders are written. 12th The figure shows the contents of four types of route numbers input and stored.

Each CPU10I of the electronic control circuit 100 receives signals from the encoder 58, detector 60, number reading mechanism 85, etc. and work information signals from the host computer 106 via the input/output circuit 104. On the other hand, based on these signals and programs and data in the ROMIO 2 and RAM 103, a drive signal for driving the servo motor 54 is outputted via the CPU 101 [input/output circuit] 04, and also via the input/output circuit 104. Push-up cylinder 5 ] and cylinder 77 drive signals are output to a control valve (not shown) to control the operations of push-up cylinder 51 , servo motor 54 , and stop mechanism 82 . It is configured to output a signal indicating the operating state of the circuit 100.

Next 1: The operation of the transport device of this embodiment and the control processing performed in the electronic control circuit 100 and the host computer 106 described above will be explained with reference to the flowchart shown in FIG.

First, the operation port of the distribution mechanism and the stop mechanism 82 will be explained. For each distribution, when the chain drive motor 26 provided in the mechanism 1 is rotated, the first chain 20 is moved around the bridge rail 101 in the counterclockwise direction in FIG. are moved around in the same direction along the station rail 1]. As a result, the conveyor 6] (the engaging shaft 38 is connected to the first or second chain 20,
23, it is transported along the bridge rail 0 or the station rail 11 in the direction of the arrow in FIG. Then, when the transport body 6 ] is transported to the position of the stop mechanism 82 , the movement of the transport body 61 is temporarily stopped by the stop lever 76 , and the number reading mechanism 85 An identifying number is read. Then, based on this reading, the electronic control circuit]00
confirms the destination of the carrier 61, and calculates the rotation angle of the arm 44 to determine the amount to be sent to the destination.

After this reading operation, the stop lever 76 is retracted and the stop of the transport body 6 is released, and as shown in FIG. The amount of swing from Oa and lla is carried onto the arm 44, and the rotating arm 45 is tilted downward.
It descends under its own weight to a position where it engages with the engagement protrusion 45a. Thereby, the engagement shaft 38 is connected to the first or second chain 20.
23, and the carrier 61 is held stationary on the rotating arm 45. In this state, the motor 54 for rotating the arm is rotated by a predetermined angle, and the rotating body 4 is rotated by a predetermined angle in the forward or reverse direction via the drive pulley 55 etc. to support the bill removal body 6. The arm 44 is rotatably arranged at a position facing a predetermined bridge rail] or the carrying-out rail portions 10b and llb of the station rail 11.

After that, the push-up body 53 is raised by the push-up cylinder 5 corresponding to the arm 44, which supports the transport body 61. A tag engagement ring 38 is engaged with the first or second chain 20.23. As a result, the carrier 6
] As the first or second chain 20.23 moves, the distribution is carried out from the top of the arm 44 to the unloading rails 10b, 11b of the bridge rail]O or the station rail]. After the work is cured, the next batch is transported to a predetermined work station ST along a conveyance rack or station rail toward a mechanism.

Note that when the transport body 61 reaches the work station ST,
The worker removes articles such as sewn products from the conveyor 61,
The article is subjected to work such as sewing, and then returned to the conveyor 6].

On the other hand, at the input station STb, a newly cut workpiece cloth, etc. is attached to the conveyor 6 by the front worker.
The key switch group 109 is operated and work information is input from the work information transmission device WST of the input station STb. Work information transmission device WST of input station STb
A signal is input to the host computer 106 from
When it is determined that the signal is from the input station STb by the forward light instruction control process shown in FIG. 10 (step 200, hereinafter referred to as 5200; the same applies hereinafter), input control processing is executed (S210).

In this input control process, as shown in FIG. 11, it is determined whether or not this is the first process after the start of operation (5220).
Even if it is the first processing, 11 Set the input unit number to 1 (
S 230). After setting ], or without executing the process of [1S230, it is determined whether the signal from input station STb is the input of a route number (S240). Then, whether the route number is input or not, the route number is temporarily stored in a predetermined location in the RAM 103 (S250). This is a number indicating the type.

If it is determined that the signal is not an input of a route number through the processing at step 5240, it is determined whether the signal is an input of the number of inputs. is temporarily stored at a predetermined location in the RAM 103 (S250). This number of inputs (for example, the number of conveyors 61 is the same for a series of sewing work processes performed on work cloths having the same color and design).In this way, the main input control process is repeated. This is executed, and a route number and a signal indicating the number of pieces to be loaded are inputted and stored by the operator at the loading station STb.

Next, the route number and the number of pieces to be fed are input, and the operator judges whether or not the feed switch 108 has been turned on (S280). 5270, corresponding to the input unit number.
Writes the input number memorized by the process (S290)
. Then, the number of conveyors 6 equal to the written number of input pieces]
However, it is determined whether or not it has been carried out from the loading station STb to the bridge rail]0 through the process described later.S30
．． 0), if the input number has not yet been reached, it is determined whether the number of the conveyor 6 to be carried out has been sent (S
310). The number of the transport body 61 stopped by the stop lever 76 of the stop mechanism 82 arranged at the input station STb is read by the number reading mechanism 85, , host computer] 06.

When the number of the conveyor 61 is sent, the route number and input unit stored in the process of 5250 are displayed in correspondence with the number of the conveyor 6, as shown in the conveyor table shown in FIG. Write the number to the specified location in RAM 103 (
S320). As a result, the route number and input unit number are written in the carrier table for each number of the carrier 6], and the work process order is written in the route table in the order of the work stations ST to which they are carried. By combining these, for each number of each transport body 6, the order in which the transport body 6 is to be transported to each work station ST is specified, and the transport order is thus stored.

Then, the electronic control circuit 100 of the input station STb
Then, an instruction to release the stop mechanism 82 is outputted so that the carrier 6 whose number has been read is carried out to the bridge wheel 10 (S330). The processes from 5300 to 330 are repeatedly executed for the number of input pieces stored in the process of 8270, and the route number and input unit are displayed in the conveyor table of FIG. Write the number. In addition, loading station 5TblQ
Even if the conveyance bodies 6] are not conveyed in the numerical order, the number of the conveyance bodies 61 is read and the route number and input unit number are written in correspondence with that number. Accordingly, the carrier 61 does not have to be carried out.

In this way, the processes from 5300 to 330 described above are repeatedly executed for the number of loaded pieces, and when it is determined that the number of conveyors 61 corresponding to the loaded number have been carried out (S300), the loaded unit number is incremented (S340).

Then, the main feeding control process is repeatedly executed again, and in the case of this embodiment, the route number "3" and the feeding number "5" are input for the feeding unit number "2". For each number, the route number "3" and the input unit number r2j are written in the carrier table.

Thereafter, the main injection control process is repeatedly executed for the required amount, and the data is written in the number table of FIG. 13 and the carrier table of FIG. 14, and the forward light instruction control process is repeatedly executed. , when it is determined that the input signal is not the signal from input station STb (S 2
00), Next 1: It is determined whether the signal is from the completion station STa (S350). Completion station ST
If the signal is not from a, the signal (Table 1) The work at another work station ST has finished, and the signal is the station number and carrier number from that work station ST. Therefore, first, based on the carrier number The route number is read from the carrier table, and then the work process order belonging to that route number is read from the route table.Then, the work station ST next to the work station ST input this time is read from the work process order. , is the next destination of the carrier 6], so that work station ST is created as a destination instruction (8360).

Next, the work station ST is transferred to the carrier 6 of that number.
It is output to the electronic control circuit Too as the next destination instruction after 1 (S370).

On the other hand, as a result of the processing in 5350, the completion station S
When it is determined that the signal is from Ta, based on the number of the carrier 61 carried into the completion station STa, the contents of the carrier table of that number written in the RAM 103 are erased (S370). . The conveyor 61 of that number (from which the work cloth that has been processed and has been subjected to the surface sheafing is removed and is empty from the station rail 1) is conveyed again to the input station STb.

In this embodiment, the execution of the processes in [1S220 to 340 acts as the storage means M4, and the execution of the processes in 5360 and 370 acts as the destination instruction means M5.

Although the present embodiment has been described using the completion station STa as an example, the present invention is not limited to the completion station STa, but can be implemented in the same manner with other work stations ST.

As described above, the conveyance device of this embodiment (the conveyance order is stored for each number of the conveyance body 61, and at each work station ST, the number of the conveyance body 61 that has been conveyed is read and the conveyance sequence is determined from the stored conveyance order. , designates the next work station ST after that work station ST as the destination of the carrier 6 with that number.

Therefore, it is possible to mix conveyance bodies 61 having different conveyance orders and convey them to each work station ST according to the respective conveyance orders. Therefore, even if the work process is different, it is possible to mix conveyors 61 with different conveyance orders without replacing the conveyance bodies 61 each time or rewriting the pre-stored process order, which allows for high-mix, low-volume production. It can also be fully accommodated. In addition, transport vehicle 6 on the way to retreat]
Even when changing the order of the work process or changing the transport to another work station ST, by changing the contents of the route table shown in Figure 12, it is possible to easily Can be changed.

The present invention is not limited to these embodiments in any way, and may be implemented in various forms without departing from the gist of the present invention.

[Effects of the Invention] As described in detail above, the conveyance device of the present invention stores the conveyance order for each conveyance body number, and from this conveyance order, selects the next work station from the work station where the work has been completed. Since it is specified as a destination, transport bodies with different transport orders can be mixed, and it is possible to cope with high-mix, low-volume production.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the basic configuration of the present invention, FIG. 2 is an overall schematic layout diagram of a conveyance device as an embodiment of the present invention, and FIG. 3 is a conveyance device as an embodiment of the present invention. Figure 4 shows an enlarged front view of the transport device of this embodiment. Figure 5 shows the drive configuration of the mechanism. FIG. 6 is an enlarged partial cross-sectional view showing the A-A cross-sectional view of FIG. FIG. 9 is an enlarged side view showing a part of the body in cross section, FIG. 9 is a block diagram showing the electrical system of this embodiment, and FIG. 10 is an example of the direct light instruction control process performed in the electronic control circuit of this embodiment. Flowchart shown, 1st
FIG. 1 is a flowchart showing an example of the input control process. FIG. 12 is an explanation of the route table of this embodiment. FIG. 13 is an illustration of the number table of this embodiment. It is an explanatory diagram of a table. M]...Transportation mechanism M2...Transportation control means M
3...Number reading means M4...Storage means M5...
・Destination indicating means 1... Assignment is by mechanism 10... Bridge rail 11... Station rail

Claims (1)

[Scope of Claims] A transport mechanism that includes a plurality of work stations provided along a transport rail that transports a transport object, and that can transport the transport object to each of the work stations according to the transport order in which work is performed; and a transport mechanism that controls the transport mechanism. Then, according to the transport order, from the work station where the work has been completed to the next work station,
A conveyance device having a conveyance control means for conveying a conveyance body, comprising: a number reading means for reading a unique number attached to the conveyance body, which is provided corresponding to each of the work stations; storage means for storing a conveyance order for each number; and based on the number read corresponding to the work station, the next one of the work station is selected from the conveyance order corresponding to the number stored in the storage means. A conveyance device comprising: destination instruction means for instructing the conveyance control means to specify a work station as the destination of the conveyance body having the number.